Bimaxillary osteotomy is a surgery procedure of the orthognathic surgery field for correction of dental and facial abnormalities, for both functional and aesthetic cases. The incidence of this abnormality is 5-10% of the population, and the etiology is unknown, with genetic, environmental and embryonic factors related. The surgery technic is complex, and requires osteotomy of the maxilla and jaw, which allows toward, forward, impact and rotation of these bones to fix the edges of the face. The anesthetic management of these patients is a challenge because of the difficult airway management and the perioperative pain control. Multimodal approach for pain control is a fact, and the use of local and regional anaesthesia is mandatory. The investigators propose bilateral ultrasound-guided suprazigomatic maxillary nerve block after bimaxillary osteotomy for a proper control of postoperative pain.
Patients undergoing scheduled bimaxillary surgery
refusal to participate in the study
patients scheduled for bimaxillary surgery together with another complementary surgical procedure (such as rhinoplasty, blepharoplasty)
age < 18 years
reinterventions
Parallel
Maxillary nerve block
Procedure/SurgeryUltrasound-guided, suprazygomatic approach, infrazygomatic window
Inmediate Postoperative pain
Postoperative pain in patients undergoing elective bimaxillary osteotomy, evaluated using the visual analog pain scale in the immediate postoperative period (2 hours postoperative). VAS: Visual analogue scale (0=minimum pain - 10=maximum pain)
Pain at 8 hours postoperatively
Pain in patients undergoing elective bimaxillary osteotomy, evaluated using the visual analog pain scale at 8 hours postoperatively. VAS: Visual analogue scale (0=minimum pain - 10=maximum pain)
Pain 18 hours after surgery
Pain in patients undergoing elective bimaxillary osteotomy, evaluated using the visual analog pain scale at 18 hours postoperatively. VAS: Visual analogue scale (0=minimum pain - 10=maximum pain)
Inmediate Use of Opioids
Use of rescue opioids (milligrams of methadone) in the immediate postoperative period in resuscitation ward (milligrams of intravenous methadone at 2 hours postoperatively)
Use of rescue opioids from 2 to 18 hours postoperatively
Use of rescue oipoids in the hospitalization ward (milligrams of subcutaneous methadone from 2 to 18 hours postoperatively)
Click on the lead sponsor to view all of their trials.
This trial is not recruiting at the moment. You can still explore other options:
